In case you missed it, last week we launched a family of isolated gate drivers specifically for power supply designs. The new Si827x ISOdriver family builds on our reputation in digital isolation and offers the highest noise immunity on the market.
Power per volume is the primary metric for power supply designers and in order to maximize power density it’s sometimes necessary to choose faster switching frequencies for modulation schemes. Power delivery systems use high-power semiconductor switches, such as silicon-based MOSFETs and new gallium nitride (GaN) and silicon carbide (SiC)-based MOSFETs, requiring a high-current isolated driver to control the switch. This improves system efficiencies but also produces higher noise transients that can cause signal loss or permanent damage from latch-up. The Si827x gate drivers protect power systems by offering exceptional immunity to these noise transients caused by high-speed switching.
The new drivers feature an EN (active high enable) pin instead of the typical DIS (active low) pin, under-voltage lockout (UVLO) fault protection, a de-glitch feature for filtering noisy inputs and highly precise dead time (DT pin) programmability. Using this DT feature, developers can precisely control the “dead time” between two switching drivers to optimize power system efficiency and safety.
Si827x Highlights include:
The propagation delay matching of Si827x is not given in datasheet, where can i get it?